Pressing-machine-operating mechanism



Oct 30, 1928. 1,689,744

. J. NEUROTH PRESSING MACHINE OPERATING MECHANISM Filed June 30, 1926 ATTURJVE YE? T Patented Oct. 30, 1928.

UNITED STATES 1,689,744 PATENT OFFICE.

JOHN NEUBOTH, OF SYRACUSE, NEW YORK, ASSIGNOR TO THE PROSPERITY COMPANYI INC., F SYRACUSE, NEW YORK,

A CORPORATION OF NEW YORK.

PRESSING-MACHINE-OPERATING MECHANISM.

Application filed June 30,

This invention has for its object a partic ularly simple, compact andefficient motion transmitting mechanism especially applicable for firsteffecting a relatively great movement of the part to which the power isto be applied upon .a small movement of the actuator and finallyapplying heavy pressure through a small movement of the part to whichthe power is applied but upon a relatively great movement of theactuator.

The mechanism is particularly adapted for pressing machines such as'areused in laun dries and garment factories to effect a quick closing ofthe press head and a heavy final pressure between the press head and thebuck.

The invention consists in the novel features and in the combinations andconstructions hereinafter set forth and claimed. I

In describing this invention. reference is had to the accompanyingdrawing in which like characters designate corresponding parts in allthe views.

Figure 1 is a side elevation partly broken away of a pressing machine towhich this mo tion transmitting mechanism is applicable.

Figure 2 is an enlarged detail view of the lever forming the subjectmatter of this invention, and contiguous parts.

This motion transmitting mechanism comprises, generally, an intermediatelever fulcrumed between its ends and connected at one end to the part towhich motion is to be trans mitted and at its other end to an actuator,and means for positively shifting the lever on its pivot during rockingof the lever, this means being self contained with the lever.

This motion transmitting mechanism is here shown as applied to apressing machine of the usual well known construction includingcooperating pressing elements, one of which is movable toward and fromthe other, as a buck 1, mounted on a bracket 2 which in turn is mountedupon a frame 3, and a head 4 movable toward and from the buck 1 andcarward the buck 1 and the final straightening ried by a yoke or lever 5pivoted at 6 betweenv 1926. Serial No. 119,730.

movement of the toggle, which effects but very little movement of thehead 4, applies heavy pressure. 1

13 designates the intermediate lever of this motion transmittingmechanism, this lever being fulcrumed at 14 between its ends to theframe and pivoted at 15: at the rear end to the toggle or one of thelinks thereof. The lever 13 is pivoted at 16 at its front end to areciprocally movable actuator as a piston rod 17, the piston of whichworks in a cylinder 18. In order that the power may be most effectivelyapplied, this cylinder 18 and piston rod 17 are in parallelism to thetoggle, particularly the link 8 thereof. The cylinder 18 is pivoted at20 to the frame and swings on its pivot substantially maintaining suchparallelism as the hen d 4 moves down onto the buck 1. The cylinder 18is usually single acting and the flow of motive fluid as air or steam iscontrolled to and from the cylinder in any suitable manner, and as thecontrol of such fluid forms no part of this invention, furtherdescription is thought to be unnecessary. The cylinder being singleacting, a' suitable counter-weight 19 and a counter-spring 21 areemployed to open the press head.

During the closing of the press from wide open position, the toggles8,.9 move toward straightened position and in so doing, the head 4 comesdown onto the buck 1 without pressure. Thereafter, while the toggle ismoving into or nearly into its dead center line, the pressure isapplied. A relatively small movement of the piston rod 17 effects theclosing of the press head and a relativelylarge movement of the pistonrod 17 effects the straightening of the toggle through a small arc andhence the applying of heavy pressure to thehead 4. This result isaccomplished by the endwise movement of the lever 13.

The endwise movement is brought about by means as a cam self-containedwith the lever 13 and coacting with the fulcrum 14 thereof. The fulcrumis usuallya roller suitably carried by a bracket 22 fixed tothe frame 1.The cam is a wedge 23 arranged to come into action when the toggle hasbeen nearly but not quite straightened. Obviously, during rocking of thelever 13, the toggle will -move toward straightened position and in sodoing, the lever will be shifted endwise on'its fulcrum, this endwisemovement being effected by the movement of the toggle. Now, in order tofinally straighten the toggle, the lever 13 must act as a pull link.When the toggle has been preliminarily moved toward its straightenedposition, the cam. or wedge 23 is brought into operative relation to thefulcrum 14 so that continued rocking movement of the lever 13 by thepiston rod 17 causes the cam 23 to ride on the fulcrum 14 and positivelypull the link endwise and hence positively straighten the toggle toapply pressure to the head 4.

\Vhat I claim is: 1. The combination with a pressing machine comprisinga frame, cooperating pressing elements supported by the frame and onebeing movable toward and from the other, means for actuating the movablepressing element including a lever carrying the movable pressingelement, a toggle including links pivoted together, one being pivoted atits outer end to said lever and the other being pivoted at its outer endto the frame, a reciprocally movable actuator connected to the frame andarranged in substantial parallelism to the upper link of the toggle, anintermediate lever fulcrumed between .its ends on the frame, one armthereof being connected to the toggle and the other to the actuator, andmeans whereby the lever may have an endwise shifting movement relativelyto the fulcrum point.

2. The combination with a pressing machine comprising a frame,cooperating pressing elements supportedby the frame and one beingmovable toward and from the other, means for actuating the movableressing element including a lever carrying t e movable pressing element,a toggle including links pivoted together, one being pivoted at itsouter end to said lever and the other being pivoted at its outer end tothe frame, a reci rocally movable actuator connected to the rame andarranged insubstantial parallelism with the upper link of thetoggle whenthe toggle is in straightened position, an intermediate lever fulcrumedbetween its ends on the frame, one arm thereof being connected to thetoggle and the other to the actuator, and means on the lever forshifting the lever relatively to its fulcrum during the straightening ofthe toggle.

3. The combination with a pressing machine comprising a frame,cooperating pressing elements, one mounted on the frame and one beingmovable toward and from the other, means for actuating the movablepressing element including a lever carrying the movable pressing elementand pivoted to the frame, a toggle including links pivoted together, onebeing ivoted at its outer end to said lever and t e other being pivotedat its outer end to theframe, a reciprocally movable actuatorflconnected-to the frame F and arranged in substantial parallelism to the link'noted to the-first lever, an intermediate ever fulcrumed between itsends on the frame, one arm thereof being connected to the toggle and theother to the. actuator, and means on the lever for positively shiftingit transversely of its fulcrum during the straightening of the toggle,said means comprising a cam surface on the lever coacting with thefulcrum. 4. The combination with a pressing machine comprising coactingpressing elements having relative movement one toward'and from theother, of means for actuating the movable pressing element'including alever fulcrumed between its ends, means on the lever for moving itendwise transversely of its fulcrum point during the rocking movement ofthe lever, actuating means coacting with one arm of the lever and motiontransmitting means between the other arm of the lever and the movablepressing element the actuating means including a part connected to oneend of the lever and movable downwardly and forwardly during theclosingof the press and the motion transmitting means including a partconnected to the other end of the lever and movable upwardly andforwardly during the closing of the press.

5. The combination with a pressing machine comprising coacting pressingelements, one of which is movable toward and from the other, of meansfor actuating the movable pressing element comprising a lever fulcrumedbetween its ends, the lever having a cam surface at one side of itsfulcrum for positively moving the lever endwise during the rockingmovement of the lever on its fulcrum, actuating means connected to onearm of the lever and motion transmitting means between the other arm ofthe lever and the movable pressing element the actuating means includina. part connected to one end of the lever an movable downwardly andforwardly during the closing of the press and. the motion transmittingmeans including a part connected to the-other end of the lever andmovable upwardly and forwardly during the closing of the press.

6. The combination w1th a pressing machine comprising coacting pressingelements,- one of which is movable toward and from the other, of meansfor actuating the movable pressing element including a lever, motiontransmitting parts connected to one end of the lever and to the movablepressin element and acting to thrust the lever en wise and movableupwardly andforwardly during the closing of the-press and an actuatingpart connected-to the other end of the lever and movable downwardly andforwardly during the closing of the press, means selfcontained with thelever and coacting with the fulcrum thereof for positively movin thelever endwise and thereby actuating said -motion transmitting parts bysuch endwise movement of the lever. The combination with a pressingmachme comprising coacting presslng elements,

connected to the rear end of the lever and I to the movable pressingelement and movable upwardly and forwardly during the closing of thepress, the lever having a cam surface coacting with its fulcrum andacting to positively move the lever endwise to apply force to said partand actuating means connected to the other arm of the lever.

8. The combination with a pressing machine comprising coacting pressing'elements, one of which is movable toward and from the other, of meansfor actuating the movable pressing element including toggle links one ofwhich is connected to the movable pressing element, a reciprocallymovable actuator, a e

ver fulcrumed between its ends and connected "at one end to the toggleand at its other end to the actuator, the lever having meansself-contained therewith to shift it endwise transversely of its fulcrumas the toggle moves towards straightened position the toggle links beingmovable upwardly and forwardly during the closing of the press and theactuator ownwardly and forwardly durin the closing of the press.

9. he combination with a pressing ma chine comprising coacting pressingelements,

one of which is movable toward and from the other, of means foractuating the movable pressing element including toggle links, one

of which is connected to themovable pressing element, a reciprocallymovable actuat0r,a lever'fulcrumed betweenits ends and connected at oneend to the toggle and at its other end to the actuator, the lever havingmeans self-contained therewith to shift it endwise transversely of itsfulcrum as the tog le moves towards straightened position,

sal self-contained means comprisin a cam on the lever and coactlng withthe ulcrum the toggle links being movable upwardly and forwar intostraightened position during the closing of the press and the actuatorbe ing movable downwardly and forwardly during the closing of the press.

In testimony whereof, I have hereunto signed m name, atS'yracuse, inthe-county of Onon aga and in the State of New York, this 2nd day ofJune, 1926.

JOHN NEUROTH.

